The lee sw150 mark ii filter holder has been designed specifically to fit ultra wide angle lenses such as the nikon 14mm f28 d af ed and canon ef 11 24mm f4l usm the design of the sw150 mark ii has been adapted from its predecessor and is now not only compatible with lees range of sw150 nd graduated and standard filters 150x170m but also the new sw150 polariser and little big and super stoppers due to the size of the front element of ultra wide angle lenses these filters are larger tha